blob: 5367baee2d08b87dfd2c1a48b3336e2899659713 [file] [log] [blame]
/*
* IWFFFF - AMD InterWave (tm) - Instrument routines
* Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/ainstr_iw.h>
#include <sound/initval.h>
#include <asm/uaccess.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Advanced Linux Sound Architecture IWFFFF support.");
MODULE_LICENSE("GPL");
static unsigned int snd_seq_iwffff_size(unsigned int size, unsigned int format)
{
unsigned int result = size;
if (format & IWFFFF_WAVE_16BIT)
result <<= 1;
if (format & IWFFFF_WAVE_STEREO)
result <<= 1;
return result;
}
static void snd_seq_iwffff_copy_lfo_from_stream(struct iwffff_lfo *fp,
struct iwffff_xlfo *fx)
{
fp->freq = le16_to_cpu(fx->freq);
fp->depth = le16_to_cpu(fx->depth);
fp->sweep = le16_to_cpu(fx->sweep);
fp->shape = fx->shape;
fp->delay = fx->delay;
}
static int snd_seq_iwffff_copy_env_from_stream(__u32 req_stype,
struct iwffff_layer *lp,
struct iwffff_env *ep,
struct iwffff_xenv *ex,
char __user **data,
long *len,
gfp_t gfp_mask)
{
__u32 stype;
struct iwffff_env_record *rp, *rp_last;
struct iwffff_xenv_record rx;
struct iwffff_env_point *pp;
struct iwffff_xenv_point px;
int points_size, idx;
ep->flags = ex->flags;
ep->mode = ex->mode;
ep->index = ex->index;
rp_last = NULL;
while (1) {
if (*len < (long)sizeof(__u32))
return -EINVAL;
if (copy_from_user(&stype, *data, sizeof(stype)))
return -EFAULT;
if (stype == IWFFFF_STRU_WAVE)
return 0;
if (req_stype != stype) {
if (stype == IWFFFF_STRU_ENV_RECP ||
stype == IWFFFF_STRU_ENV_RECV)
return 0;
}
if (*len < (long)sizeof(rx))
return -EINVAL;
if (copy_from_user(&rx, *data, sizeof(rx)))
return -EFAULT;
*data += sizeof(rx);
*len -= sizeof(rx);
points_size = (le16_to_cpu(rx.nattack) + le16_to_cpu(rx.nrelease)) * 2 * sizeof(__u16);
if (points_size > *len)
return -EINVAL;
rp = kzalloc(sizeof(*rp) + points_size, gfp_mask);
if (rp == NULL)
return -ENOMEM;
rp->nattack = le16_to_cpu(rx.nattack);
rp->nrelease = le16_to_cpu(rx.nrelease);
rp->sustain_offset = le16_to_cpu(rx.sustain_offset);
rp->sustain_rate = le16_to_cpu(rx.sustain_rate);
rp->release_rate = le16_to_cpu(rx.release_rate);
rp->hirange = rx.hirange;
pp = (struct iwffff_env_point *)(rp + 1);
for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
if (copy_from_user(&px, *data, sizeof(px)))
return -EFAULT;
*data += sizeof(px);
*len -= sizeof(px);
pp->offset = le16_to_cpu(px.offset);
pp->rate = le16_to_cpu(px.rate);
}
if (ep->record == NULL) {
ep->record = rp;
} else {
rp_last = rp;
}
rp_last = rp;
}
return 0;
}
static int snd_seq_iwffff_copy_wave_from_stream(struct snd_iwffff_ops *ops,
struct iwffff_layer *lp,
char __user **data,
long *len,
int atomic)
{
struct iwffff_wave *wp, *prev;
struct iwffff_xwave xp;
int err;
gfp_t gfp_mask;
unsigned int real_size;
gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
if (*len < (long)sizeof(xp))
return -EINVAL;
if (copy_from_user(&xp, *data, sizeof(xp)))
return -EFAULT;
*data += sizeof(xp);
*len -= sizeof(xp);
wp = kzalloc(sizeof(*wp), gfp_mask);
if (wp == NULL)
return -ENOMEM;
wp->share_id[0] = le32_to_cpu(xp.share_id[0]);
wp->share_id[1] = le32_to_cpu(xp.share_id[1]);
wp->share_id[2] = le32_to_cpu(xp.share_id[2]);
wp->share_id[3] = le32_to_cpu(xp.share_id[3]);
wp->format = le32_to_cpu(xp.format);
wp->address.memory = le32_to_cpu(xp.offset);
wp->size = le32_to_cpu(xp.size);
wp->start = le32_to_cpu(xp.start);
wp->loop_start = le32_to_cpu(xp.loop_start);
wp->loop_end = le32_to_cpu(xp.loop_end);
wp->loop_repeat = le16_to_cpu(xp.loop_repeat);
wp->sample_ratio = le32_to_cpu(xp.sample_ratio);
wp->attenuation = xp.attenuation;
wp->low_note = xp.low_note;
wp->high_note = xp.high_note;
real_size = snd_seq_iwffff_size(wp->size, wp->format);
if (!(wp->format & IWFFFF_WAVE_ROM)) {
if ((long)real_size > *len) {
kfree(wp);
return -ENOMEM;
}
}
if (ops->put_sample) {
err = ops->put_sample(ops->private_data, wp,
*data, real_size, atomic);
if (err < 0) {
kfree(wp);
return err;
}
}
if (!(wp->format & IWFFFF_WAVE_ROM)) {
*data += real_size;
*len -= real_size;
}
prev = lp->wave;
if (prev) {
while (prev->next) prev = prev->next;
prev->next = wp;
} else {
lp->wave = wp;
}
return 0;
}
static void snd_seq_iwffff_env_free(struct snd_iwffff_ops *ops,
struct iwffff_env *env,
int atomic)
{
struct iwffff_env_record *rec;
while ((rec = env->record) != NULL) {
env->record = rec->next;
kfree(rec);
}
}
static void snd_seq_iwffff_wave_free(struct snd_iwffff_ops *ops,
struct iwffff_wave *wave,
int atomic)
{
if (ops->remove_sample)
ops->remove_sample(ops->private_data, wave, atomic);
kfree(wave);
}
static void snd_seq_iwffff_instr_free(struct snd_iwffff_ops *ops,
struct iwffff_instrument *ip,
int atomic)
{
struct iwffff_layer *layer;
struct iwffff_wave *wave;
while ((layer = ip->layer) != NULL) {
ip->layer = layer->next;
snd_seq_iwffff_env_free(ops, &layer->penv, atomic);
snd_seq_iwffff_env_free(ops, &layer->venv, atomic);
while ((wave = layer->wave) != NULL) {
layer->wave = wave->next;
snd_seq_iwffff_wave_free(ops, wave, atomic);
}
kfree(layer);
}
}
static int snd_seq_iwffff_put(void *private_data, struct snd_seq_kinstr *instr,
char __user *instr_data, long len, int atomic,
int cmd)
{
struct snd_iwffff_ops *ops = private_data;
struct iwffff_instrument *ip;
struct iwffff_xinstrument ix;
struct iwffff_layer *lp, *prev_lp;
struct iwffff_xlayer lx;
int err;
gfp_t gfp_mask;
if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
return -EINVAL;
gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
/* copy instrument data */
if (len < (long)sizeof(ix))
return -EINVAL;
if (copy_from_user(&ix, instr_data, sizeof(ix)))
return -EFAULT;
if (ix.stype != IWFFFF_STRU_INSTR)
return -EINVAL;
instr_data += sizeof(ix);
len -= sizeof(ix);
ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
ip->exclusion = le16_to_cpu(ix.exclusion);
ip->layer_type = le16_to_cpu(ix.layer_type);
ip->exclusion_group = le16_to_cpu(ix.exclusion_group);
ip->effect1 = ix.effect1;
ip->effect1_depth = ix.effect1_depth;
ip->effect2 = ix.effect2;
ip->effect2_depth = ix.effect2_depth;
/* copy layers */
prev_lp = NULL;
while (len > 0) {
if (len < (long)sizeof(struct iwffff_xlayer)) {
snd_seq_iwffff_instr_free(ops, ip, atomic);
return -EINVAL;
}
if (copy_from_user(&lx, instr_data, sizeof(lx)))
return -EFAULT;
instr_data += sizeof(lx);
len -= sizeof(lx);
if (lx.stype != IWFFFF_STRU_LAYER) {
snd_seq_iwffff_instr_free(ops, ip, atomic);
return -EINVAL;
}
lp = kzalloc(sizeof(*lp), gfp_mask);
if (lp == NULL) {
snd_seq_iwffff_instr_free(ops, ip, atomic);
return -ENOMEM;
}
if (prev_lp) {
prev_lp->next = lp;
} else {
ip->layer = lp;
}
prev_lp = lp;
lp->flags = lx.flags;
lp->velocity_mode = lx.velocity_mode;
lp->layer_event = lx.layer_event;
lp->low_range = lx.low_range;
lp->high_range = lx.high_range;
lp->pan = lx.pan;
lp->pan_freq_scale = lx.pan_freq_scale;
lp->attenuation = lx.attenuation;
snd_seq_iwffff_copy_lfo_from_stream(&lp->tremolo, &lx.tremolo);
snd_seq_iwffff_copy_lfo_from_stream(&lp->vibrato, &lx.vibrato);
lp->freq_scale = le16_to_cpu(lx.freq_scale);
lp->freq_center = lx.freq_center;
err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECP,
lp,
&lp->penv, &lx.penv,
&instr_data, &len,
gfp_mask);
if (err < 0) {
snd_seq_iwffff_instr_free(ops, ip, atomic);
return err;
}
err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECV,
lp,
&lp->venv, &lx.venv,
&instr_data, &len,
gfp_mask);
if (err < 0) {
snd_seq_iwffff_instr_free(ops, ip, atomic);
return err;
}
while (len > (long)sizeof(__u32)) {
__u32 stype;
if (copy_from_user(&stype, instr_data, sizeof(stype)))
return -EFAULT;
if (stype != IWFFFF_STRU_WAVE)
break;
err = snd_seq_iwffff_copy_wave_from_stream(ops,
lp,
&instr_data,
&len,
atomic);
if (err < 0) {
snd_seq_iwffff_instr_free(ops, ip, atomic);
return err;
}
}
}
return 0;
}
static void snd_seq_iwffff_copy_lfo_to_stream(struct iwffff_xlfo *fx,
struct iwffff_lfo *fp)
{
fx->freq = cpu_to_le16(fp->freq);
fx->depth = cpu_to_le16(fp->depth);
fx->sweep = cpu_to_le16(fp->sweep);
fp->shape = fx->shape;
fp->delay = fx->delay;
}
static int snd_seq_iwffff_copy_env_to_stream(__u32 req_stype,
struct iwffff_layer *lp,
struct iwffff_xenv *ex,
struct iwffff_env *ep,
char __user **data,
long *len)
{
struct iwffff_env_record *rp;
struct iwffff_xenv_record rx;
struct iwffff_env_point *pp;
struct iwffff_xenv_point px;
int points_size, idx;
ex->flags = ep->flags;
ex->mode = ep->mode;
ex->index = ep->index;
for (rp = ep->record; rp; rp = rp->next) {
if (*len < (long)sizeof(rx))
return -ENOMEM;
memset(&rx, 0, sizeof(rx));
rx.stype = req_stype;
rx.nattack = cpu_to_le16(rp->nattack);
rx.nrelease = cpu_to_le16(rp->nrelease);
rx.sustain_offset = cpu_to_le16(rp->sustain_offset);
rx.sustain_rate = cpu_to_le16(rp->sustain_rate);
rx.release_rate = cpu_to_le16(rp->release_rate);
rx.hirange = cpu_to_le16(rp->hirange);
if (copy_to_user(*data, &rx, sizeof(rx)))
return -EFAULT;
*data += sizeof(rx);
*len -= sizeof(rx);
points_size = (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
if (*len < points_size)
return -ENOMEM;
pp = (struct iwffff_env_point *)(rp + 1);
for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
px.offset = cpu_to_le16(pp->offset);
px.rate = cpu_to_le16(pp->rate);
if (copy_to_user(*data, &px, sizeof(px)))
return -EFAULT;
*data += sizeof(px);
*len -= sizeof(px);
}
}
return 0;
}
static int snd_seq_iwffff_copy_wave_to_stream(struct snd_iwffff_ops *ops,
struct iwffff_layer *lp,
char __user **data,
long *len,
int atomic)
{
struct iwffff_wave *wp;
struct iwffff_xwave xp;
int err;
unsigned int real_size;
for (wp = lp->wave; wp; wp = wp->next) {
if (*len < (long)sizeof(xp))
return -ENOMEM;
memset(&xp, 0, sizeof(xp));
xp.stype = IWFFFF_STRU_WAVE;
xp.share_id[0] = cpu_to_le32(wp->share_id[0]);
xp.share_id[1] = cpu_to_le32(wp->share_id[1]);
xp.share_id[2] = cpu_to_le32(wp->share_id[2]);
xp.share_id[3] = cpu_to_le32(wp->share_id[3]);
xp.format = cpu_to_le32(wp->format);
if (wp->format & IWFFFF_WAVE_ROM)
xp.offset = cpu_to_le32(wp->address.memory);
xp.size = cpu_to_le32(wp->size);
xp.start = cpu_to_le32(wp->start);
xp.loop_start = cpu_to_le32(wp->loop_start);
xp.loop_end = cpu_to_le32(wp->loop_end);
xp.loop_repeat = cpu_to_le32(wp->loop_repeat);
xp.sample_ratio = cpu_to_le32(wp->sample_ratio);
xp.attenuation = wp->attenuation;
xp.low_note = wp->low_note;
xp.high_note = wp->high_note;
if (copy_to_user(*data, &xp, sizeof(xp)))
return -EFAULT;
*data += sizeof(xp);
*len -= sizeof(xp);
real_size = snd_seq_iwffff_size(wp->size, wp->format);
if (!(wp->format & IWFFFF_WAVE_ROM)) {
if (*len < (long)real_size)
return -ENOMEM;
}
if (ops->get_sample) {
err = ops->get_sample(ops->private_data, wp,
*data, real_size, atomic);
if (err < 0)
return err;
}
if (!(wp->format & IWFFFF_WAVE_ROM)) {
*data += real_size;
*len -= real_size;
}
}
return 0;
}
static int snd_seq_iwffff_get(void *private_data, struct snd_seq_kinstr *instr,
char __user *instr_data, long len, int atomic, int cmd)
{
struct snd_iwffff_ops *ops = private_data;
struct iwffff_instrument *ip;
struct iwffff_xinstrument ix;
struct iwffff_layer *lp;
struct iwffff_xlayer lx;
char __user *layer_instr_data;
int err;
if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
return -EINVAL;
if (len < (long)sizeof(ix))
return -ENOMEM;
memset(&ix, 0, sizeof(ix));
ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
ix.stype = IWFFFF_STRU_INSTR;
ix.exclusion = cpu_to_le16(ip->exclusion);
ix.layer_type = cpu_to_le16(ip->layer_type);
ix.exclusion_group = cpu_to_le16(ip->exclusion_group);
ix.effect1 = cpu_to_le16(ip->effect1);
ix.effect1_depth = cpu_to_le16(ip->effect1_depth);
ix.effect2 = ip->effect2;
ix.effect2_depth = ip->effect2_depth;
if (copy_to_user(instr_data, &ix, sizeof(ix)))
return -EFAULT;
instr_data += sizeof(ix);
len -= sizeof(ix);
for (lp = ip->layer; lp; lp = lp->next) {
if (len < (long)sizeof(lx))
return -ENOMEM;
memset(&lx, 0, sizeof(lx));
lx.stype = IWFFFF_STRU_LAYER;
lx.flags = lp->flags;
lx.velocity_mode = lp->velocity_mode;
lx.layer_event = lp->layer_event;
lx.low_range = lp->low_range;
lx.high_range = lp->high_range;
lx.pan = lp->pan;
lx.pan_freq_scale = lp->pan_freq_scale;
lx.attenuation = lp->attenuation;
snd_seq_iwffff_copy_lfo_to_stream(&lx.tremolo, &lp->tremolo);
snd_seq_iwffff_copy_lfo_to_stream(&lx.vibrato, &lp->vibrato);
layer_instr_data = instr_data;
instr_data += sizeof(lx);
len -= sizeof(lx);
err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECP,
lp,
&lx.penv, &lp->penv,
&instr_data, &len);
if (err < 0)
return err;
err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECV,
lp,
&lx.venv, &lp->venv,
&instr_data, &len);
if (err < 0)
return err;
/* layer structure updating is now finished */
if (copy_to_user(layer_instr_data, &lx, sizeof(lx)))
return -EFAULT;
err = snd_seq_iwffff_copy_wave_to_stream(ops,
lp,
&instr_data,
&len,
atomic);
if (err < 0)
return err;
}
return 0;
}
static long snd_seq_iwffff_env_size_in_stream(struct iwffff_env *ep)
{
long result = 0;
struct iwffff_env_record *rp;
for (rp = ep->record; rp; rp = rp->next) {
result += sizeof(struct iwffff_xenv_record);
result += (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
}
return 0;
}
static long snd_seq_iwffff_wave_size_in_stream(struct iwffff_layer *lp)
{
long result = 0;
struct iwffff_wave *wp;
for (wp = lp->wave; wp; wp = wp->next) {
result += sizeof(struct iwffff_xwave);
if (!(wp->format & IWFFFF_WAVE_ROM))
result += wp->size;
}
return result;
}
static int snd_seq_iwffff_get_size(void *private_data, struct snd_seq_kinstr *instr,
long *size)
{
long result;
struct iwffff_instrument *ip;
struct iwffff_layer *lp;
*size = 0;
ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
result = sizeof(struct iwffff_xinstrument);
for (lp = ip->layer; lp; lp = lp->next) {
result += sizeof(struct iwffff_xlayer);
result += snd_seq_iwffff_env_size_in_stream(&lp->penv);
result += snd_seq_iwffff_env_size_in_stream(&lp->venv);
result += snd_seq_iwffff_wave_size_in_stream(lp);
}
*size = result;
return 0;
}
static int snd_seq_iwffff_remove(void *private_data,
struct snd_seq_kinstr *instr,
int atomic)
{
struct snd_iwffff_ops *ops = private_data;
struct iwffff_instrument *ip;
ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
snd_seq_iwffff_instr_free(ops, ip, atomic);
return 0;
}
static void snd_seq_iwffff_notify(void *private_data,
struct snd_seq_kinstr *instr,
int what)
{
struct snd_iwffff_ops *ops = private_data;
if (ops->notify)
ops->notify(ops->private_data, instr, what);
}
int snd_seq_iwffff_init(struct snd_iwffff_ops *ops,
void *private_data,
struct snd_seq_kinstr_ops *next)
{
memset(ops, 0, sizeof(*ops));
ops->private_data = private_data;
ops->kops.private_data = ops;
ops->kops.add_len = sizeof(struct iwffff_instrument);
ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_INTERWAVE;
ops->kops.put = snd_seq_iwffff_put;
ops->kops.get = snd_seq_iwffff_get;
ops->kops.get_size = snd_seq_iwffff_get_size;
ops->kops.remove = snd_seq_iwffff_remove;
ops->kops.notify = snd_seq_iwffff_notify;
ops->kops.next = next;
return 0;
}
/*
* Init part
*/
static int __init alsa_ainstr_iw_init(void)
{
return 0;
}
static void __exit alsa_ainstr_iw_exit(void)
{
}
module_init(alsa_ainstr_iw_init)
module_exit(alsa_ainstr_iw_exit)
EXPORT_SYMBOL(snd_seq_iwffff_init);